Messersi Excavators M-55U

- Innovative design with the tail always remaining within the width of the tracks (girosagoma Zero Tail Swing).
- Suspension and adjustable operator’s seat increases productivity by providing optimum comfort.
- Travel levers and servo-controls disabling system by armrest lifting prevents accidents due to unexpected machine movement during entry or exit from the driving place.
- Extraordinary manoeuvrability due to the use of pilot assisted controls (joy-sticks) to operate arms and buckets.
- Straight travel contemporary with all arms/bucket manoeuvring.
- Rollers and idler wheels with rolling bearings replacing the guide bushings for a remarkable increasing in the traction and life time performances.
- The round shape design recalls the other models of the range, thus creating a continuity of style and image.

Standard equipment

Cab with heating system according to TOPS norms – Standard bucket of mm 600 (SAE capacity lt. 157) 2-speeds travel electric switch – Regenerative system on dipstick arm – 1550 mm. Long dipstick – Hydraulic Power Take-Off (P.T.O.) – Automatic transmission system – Operator’s and spare parts manuals.

Optionals equipment

Buckets of mm from 300 to 1000 standard, for rocks and for Quick Hitches – Buckets for slopes standard or swivelling – Buckets for cleaning – Mechanical or hydraulic Quick Hitches – Hydraulic breaker – Hand breaker -
Hydraulic drill – Grass-brush cutter – Steel tracks – 1850 mm longer arm – Air conditioning.

Engine

Make and model		Kubota V2403M-T
Intake system		turbocharged
Max power at 2700 rpm (DIN 6271)	HP/Kw	59 / 44
Rated horse power at 2200 rpm	HP/Kw	52 / 38
Cylinders	N°	4
Displacement	cm³	2434
Cooling		water
Battery	N°	1 – 12 V – 105 Ah

Hydraulic System

Hydrostatic transmission with piston motors and planetary reduction gears with negative brakes and automatic shift.
Travelling counter-balance valves.
N.2 variable displacement piston pumps + gear pump	lt/min	60 x 2 + 45
Total delivery	lt/min	165
Auxiliary hydraulic flow for P.T.O.	lt/min	105
Max working pressure	bar	250 / 220
Slew speed (with piston motors and negative brake)	g/min	9.0
Hydraulic servo-controlled joystick to operate bucket, arms, slew.
Hydraulic servo-controlled pedals for driving, off-setting and simple/double effect Power Take Off; lever control for the refilling blade.
Heat exchanger for oil cooling.

Undercarriage

Box section steel frame
Track type and width	mm	rubber 400
Track bearing rollers	N°	5+5 low / 1+1 up
Track tensioning		grease
Dozer blade	mm	370 x 2070

Performances

Shipping weight	Kg	5100
Operating weight	Kg	5250
Break out force	daN	3970
Digging force	daN	2900
Travel speed	Km/h	2.7 / 4.7
Max gradient capability	more than %	100
Specific ground pressure	Kg/cm²	0.300

Refuelling

Fuel tank capacity	lt	80
Hydraulic oil tank capacity	lt	50

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